#include "csapp.h"
int main()
{
  int fd1 = 0, fd2 = 0;
  fd1 = Open( "foo.txt", O_RDONLY, 0 );
  Close( fd1 );
  fd2 = Open( "baz.txt", O_RDONLY, 0 );
  printf( "fd2 = %d\n", fd2 );
  exit(0);
}